Stove and furnace.



PATENTED APR. 24, 1906.

H. B. JANBS. STOVE AND FURNACE.

APPLICATION FILED JUNE 10.1905.

2 SHEETS-SHEET 1.

No. 818,628. PATENTED APR. 24, 1906.

H. B. JANBS. STOVE AND FURNACE,

APPLICATION FILED JUNE 10.1905.

2 SHEBTS-SHEET Q,

UNITED STAiIlES OFFICE.

HENRY E. JANES, OF NEW YORK, N. Y., ASSlG-NOR TO JANES & KIRTLAND, OF NEWV YORK, N. Y., A CORPORATION OF NEIV YORK.

STOVE AND FURNACE.

Specification of Letters Patent.

Patented April 24, 1906.

Application filed June 10,1905. Serial No. 264,558.

To all whom it may concern.-

Be it known that I, HENRY E. JANES, a citizen of the United States, residing in the borough of Brooklyn, in the city of New York, in the State of New York, have invented certain new and useful Improvements in Stoves and Furnaces, of which the following is a specification, reference being had to the accompanying drawings, forming a part hereof.

In domestic use of stoves and furnaces of various types and kinds it frequently happens that ashes are permitted to accumulate in the ash-pit until they approach so closely to the grate or grate-bars that the latter are burned out.

It is the object of this invention to provide means to guard against such accumulation of ashes in the ash-pit, the devices employed for the purpose preferably acting when the ashes have accumulatei'l unduly to prevent the movement of some other part of the stove or furnace which is essential to be moved in keeping up the fire, such as the fuel-door or the shaker or some other movable part.

The invention will be more fully explained hereinafter with reference to the accompany ing drawings, in which different embodiments thereof are illustrated in order that the nature of the invention may be readily understood.

In the drawings, Figure 1 is a perspective view of an ordinary hot-air furnace with the casing removed and the inner walls partly broken out. Fig. 2 is a view in horizontal section on the plane indicated by the line 2 2 of Fig. 1. Fig. 3 is a perspective view, partly broken out, of the lower portion of an ordinary hot-air furnace having applied thereto a different embodiment of the invention. Fig. 4 is a horizontal section on the plane indicated by the line 4 4 of Fig. 3.

The stove or furnace to which the improvement is applied may be of any usual or desired form. In the ordinary hot-air furnace to which the improvement is illustrated as applied the usual fuel-door a communicates with the fire-pot I), having the grate 6, through which the ashes fall into the ashpit (1. Located in the ash-pit J is a movable member 6, the movement of which is restrained or prevented by accumulation of ashes in the pit. As shown in Figs. 1 and 2 of the drawings, this movable member or ashdetector, as it might be called, is an arm c,

arranged to swing in a horizontal plane on a pivotf, the plane of movement being preferably about midway between the bottom of the ash-pit and grate above it. Obviously the movement of this arm will be impeded or which must be moved in the inspection of the condition of the fire or in the maintenance of the fire or in the operaton of the stove or furnace in some manner, so that the fire cannot be inspected or fuel cannot be added or the fire cannot be shaken down or some other necessary operation cannot be PGIfOI'IIIGd until the excess. of ashes in the ash-pit has been removed. In the construction shown in Figs. 1 and 2 of the drawings the swinging arm c is provided with a short arm g, which is connected by a link h with a short arm i on a vertical rod Ir. The latter in,this construction constitutes the pintle of the fuel-door a, to which it is fixed, so that when the fueldoor is opened the arm-or movable member c will be swung across the ash-pit. If the ashes have been allowed to accumulate unduly, the movement of the arm a will be pre vented or impeded and the door (L therefore cannot be opened freely. therefore, the attendant will be reminded of the necessity of removing the ashes or compelled to do so before adding more fuel.

In the embodiment of the invention illustrated in Figs. 3 and 4 the movable member 5 c is shown as a vane or plate hinged or otherwise mounted near the bottom of the ash-pit and at one side thereof. This vane or plate normally stands in a vertical position at the side of the ash-pit, and when the ash-pit is empty can be swung down into approximately a horizontal position. When, how ever, the ashes have accumulated in the ashpit, this movable member cannot be swung down into an approximately horizontal position. To effect the movement of this vane The movement of 65 In this manner, 0

or plate, it is provided, as shown in Figs. 8 and 4, with a shaft Z, provided outside of the furnace with a sprocket-wheel m. A chain n gears the sprocket-wheel 'm with a corresponding sprocket-wheel 0, fixed on a shaft p, which forms the pintle of and is secured to the door g, which covers the grate-shaking device 1". Therefore if ashes have been allowed to accumulate unduly in the ash-pit it will be impossible to open the door q, so as to afford access to the grate-shaker '1, until the excess of ashes has been removed. By this device it becomes impossible to add materially to the quantity of ashes in the pit (except as the ashes may fall naturally through the grate) whenever there is any considerable quantity of ashes in the pit.

Various other embodiments of the invention will readily suggest themselves to those skilled in the art in view of the foregoing, and it is therefore to be understood that the invention is not limited to the particular devices described herein asembodiments thereof.

I claim as my inventionf. .7

1. In combination with the ash-pit of a stove or furnace, a movable ash-detector located in the pit, a part of the stove or furnace movable in the operation thereof and a connection between said part and said detector.

2. In combination with the ash-pit of a stove or furnace, a movable ash-detector lo cated in the pit, a door for the stove or fur nace, and a connection between the door and the ash-detector.

3. In combination with the ash-pit of a stove or furnace, a movable ash-detector located in the ash-pit, a door for the stove or furnace, a shaft forming the pintle of and secured to said door and a connection between the shaft and said detector.

. This specification signed and witnessed this 8th day of June, 1905.

HENRY E. JANES. In presence of ANTHONY N. JEsBERA, W. B. GREELEY. 

